x86_64: Remove outdated comment in boot decompressor Makefile

64bit code in there now since some time.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/x86_64/boot/compressed/Makefile

@@ -3,8 +3,6 @@
 #
 # create a compressed vmlinux image from the original vmlinux
 #
-# Note all the files here are compiled/linked as 32bit executables.
-#
 
 targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o